The Ashley ab Hugh Museum, former residence of the art collector and philanthropist Ashley ab Hugh, was a public art gallery. It housed a range of abstract paintings and sculptures collected by ab Hugh over the course of his life. The museum was open Tuesdays to Thursdays from 10-4, and had an optional entry fee of £3.50. It was located in a Cardiff suburb, and had very few visitors due to its location, lack of appearance in any guide books, and lack of a website. The building was surrounded by metal fences and security cameras. In 2008, Bill Williams worked in the museum's ticket office.

At some point, and until 1963, the collection housed an alien nuclear weapon which Ashley ab Hugh believed to be a regular sculpture. (PROSE: The Beauty of Our Weapons)